Fix remaining target name for AppRTCMobile_stubbed_video_io_test_apk.

Fixes a target name that was missed in the last CL.

TBR=phoglund

Bug: webrtc:9588
No-Try: True
Change-Id: I704325666b758cee7eb080f8628fc839ab89831d
Reviewed-on: https://webrtc-review.googlesource.com/92389
Commit-Queue: Sami Kalliomäki <sakal@webrtc.org>
Reviewed-by: Oleh Prypin <oprypin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24188}
diff --git a/tools_webrtc/mb/gn_isolate_map.pyl b/tools_webrtc/mb/gn_isolate_map.pyl
index 57ede1a..5832dd1 100644
--- a/tools_webrtc/mb/gn_isolate_map.pyl
+++ b/tools_webrtc/mb/gn_isolate_map.pyl
@@ -128,7 +128,7 @@
     "type": "console_test_launcher",
   },
   "video_quality_loopback_test": {
-    "label": "//examples:AppRTCMobileTestStubbedVideoIO",
+    "label": "//examples:AppRTCMobile_stubbed_video_io_test_apk",
     "type": "script",
     "script": "//examples/androidtests/video_quality_loopback_test.py",
     "args": ["."],